CN103465952B - Vehicle power steering apparatus - Google Patents
Vehicle power steering apparatus Download PDFInfo
- Publication number
- CN103465952B CN103465952B CN201310388138.9A CN201310388138A CN103465952B CN 103465952 B CN103465952 B CN 103465952B CN 201310388138 A CN201310388138 A CN 201310388138A CN 103465952 B CN103465952 B CN 103465952B
- Authority
- CN
- China
- Prior art keywords
- wheel
- protuberance
- steering apparatus
- shell
- bearing circle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Steering Control In Accordance With Driving Conditions (AREA)
- Power Steering Mechanism (AREA)
Abstract
A kind of vehicle power steering apparatus, for in the steering hardware of vehicle, this steering hardware comprises bearing circle and steering shaft, described bearing circle is fixed on one end of described steering shaft, described bearing circle is provided with angle detector, and described angle detector is connected to control unit to detect the anglec of rotation of described bearing circle in real time; Described vehicle power steering apparatus comprises shell, and a power wheel is arranged in described shell, and described steering shaft passes described power wheel and is fixed on described power wheel by pin; And a screw rod, its one end is supported in described shell by rear bearing element, the other end is supported in described shell by front bearing element and stretches out described front bearing element, its external part is connected to a driver element by coupler, and described driver element is connected to described control unit to accept control signal; Structure of the present invention is simple, and handling are convenient, and what energy was stable provides the power-assisted turned to, and overcomes the defect of prior art.
Description
Technical field
The present invention relates to the technical field of vehicle annex, particularly relate to a kind of vehicle power steering apparatus.
Background technology
In vehicle accessory, steering hardware is arranged between the seat of driver and wheel, makes a kind of device of the removable wheel angle of driver.This steering hardware comprise be located at driver bearing circle below a steering shaft, the gear valve module be connected with steering shaft and extend to left and right side and be connected with wheel, for a ratch of rotating-wheel direct in the course of action of gear valve module.
Existing vehicle steering device, especially in high-end vehicles, be equipped with servo steering device, usual employing hydraulic pressure carries out servo-steering, conventional servo steering device can comprise a Hydraulic Pump, and the gear valve module to be connected with Hydraulic Pump, this gear valve module is arranged at the below of bearing circle and steering shaft.
This gear valve module controls the oil stream supplied by oil pump, thus makes the input shaft being arranged at gear valve module inner upper produce an additional rotational force, the rotational force of generation.
But, in existing hydraulic pressure assisted steering device, when the piston being connected to tooth bar moves back and forth to left and right side in cylinder barrel by the hydraulic pressure of operating fluid in the process of driver turns's bearing circle, operating fluid seepage can enter in left and right cylinder between piston and cylinder barrel, causes operating fluid to export from Hydraulic Pump constantly.
In addition, when can not provide assist steering force as caused due to the seepage of operating fluid in the process of driver turns's bearing circle, then need that driver applies the last one to bearing circle or weak especially application force, therefore cause existing hydraulic servo easily to be revealed, failure of apparatus.
For this reason, designer of the present invention is by concentrating on studies and designing, and comprehensive experience and the achievement being engaged in related industry for a long time for many years, research and design goes out a kind of vehicle power steering apparatus, to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of vehicle power steering apparatus, its structure is simple, and handling are convenient, and what energy was stable provides the power-assisted turned to, and overcomes the defect of prior art.
For achieving the above object, the invention discloses a kind of vehicle power steering apparatus, in the steering hardware of vehicle, it is characterized in that:
This steering hardware comprises bearing circle and steering shaft, and described bearing circle is fixed on one end of described steering shaft, and described bearing circle is provided with angle detector, and described angle detector is connected to control unit to detect the anglec of rotation of described bearing circle in real time;
Described vehicle power steering apparatus comprises shell, and a power wheel is arranged in described shell, and described steering shaft passes described power wheel and is fixed on described power wheel by pin, and the outer rim of described power wheel is provided with multiple external tooth; And
One screw rod, described screw rod is provided with the outside thread with described external tooth engaged transmission, its one end is supported in described shell by rear bearing element, the other end is supported in described shell by front bearing element and stretches out described front bearing element, its external part is connected to a driver element by coupler, and described driver element is connected to described control unit to accept control signal.
Wherein: the outside of described rear bearing element is provided with a slice spring, described spring detouchable is fixed on described shell and forms a pretension to described rear bearing element and push power to ensure effective support of screw rod both sides.
Wherein: described coupler is automatic centering coupler, wheel of constant breadth, outer shroud, retainer, inner ring and multiple ball is at least comprised;
Described wheel of constant breadth comprises disc body, the rear end of described disc body is axially extended with engages fixing salient with the output shaft of driver element, the front end week circular shaft of described disc body, to being extended with multiple first protuberance, is formed with multiple first recess between described multiple first protuberance;
Described outer shroud is cylindric, and its rear end periphery is axially extended with multiple the second protuberance stretching into described first recess, and front end is provided with accommodation hole, and the periphery of described accommodation hole is provided with multiple depression;
Described inner ring is cylindric, be formed in it through can with the splined hole of the spline engagement transmission on described screw rod external part, it is outer is provided with multiple longitudinal extension and the 3rd protuberance that arranges of equi-spaced apart;
Described retainer is between described outer shroud and inner ring, and retainer is provided with between multiple each 3rd protuberance ball being remained on inner ring and pocket hole in the depression of outer shroud.
Wherein: the accommodation hole of described outer shroud is interior spherical shape, and the outside face of the 3rd projection of described inner ring is the outer Surface of Sphere matched with described interior spherical shape.
Wherein: described wheel of constant breadth and be equipped with distance piece outward, described distance piece is provided with the spacer portion of through hole and periphery longitudinal extension, and described spacer portion is between described first protuberance and the second protuberance.
Wherein: described distance piece is made up of elastomeric material.
By said structure, vehicle power steering apparatus of the present invention achieves following technique effect:
1, adopts screw drive, there is not fluid leakage, and transmission is accurate, can provide power-assisted accurately, auxiliary wheel dress to;
2, adopt the transmission of interior spherical shape and outer Surface of Sphere to coordinate, certain rotation can be carried out when not affecting transmission, avoiding the bias of screw rod to affect the transmission of power;
3, by elastomeric element carry out in transmission power buffering, avoid the impact that rigid contact produces, thus power transmission is more smooth and easy, speed and efficiency better.
The present invention will be further described in detail by the following specific embodiments, and will be more apparent and obvious to understand further combined with the description of the drawings.
Accompanying drawing explanation
Fig. 1 shows the application schematic diagram of vehicle power steering apparatus of the present invention.
Fig. 2 shows the cutaway view of vehicle power steering apparatus of the present invention.
Fig. 3 shows the schematic diagram of automatic centering coupler of the present invention.
Reference numeral:
101: bearing circle; 102: steering shaft; 103: power steering apparatus; 104: wheel; 11: driver element; 12: power wheel; 13: pin; 14: external tooth; 15: automatic centering coupler; 16: screw rod; 17: rear bearing element; 18: front bearing element; 19: sheet spring; 20: shell; 21: wheel of constant breadth; 211: salient; 212: the first protuberances; 213: the first recesses; 22: distance piece; 221: through hole; 222: spacer portion; 23: outer shroud; 231: the second protuberances; 232: accommodation hole; 233: depression; 24: retainer; 241: pocket hole; 25: inner ring; 251: splined hole; 252: the three protuberances; 26: ball.
Detailed description of the invention
See Fig. 1, show vehicle power steering apparatus of the present invention.
Described vehicle power steering apparatus is used in the steering hardware of vehicle, as shown in Figure 1, this steering hardware comprises bearing circle 101 and steering shaft 102, described bearing circle 101 is fixed on one end of described steering shaft 101, described steering shaft 102 be connected to wheel 104 with realize dress to, wherein, vehicle power steering apparatus 103 of the present invention is arranged on described steering shaft 102.
See Fig. 2, show the concrete structure of described vehicle power steering apparatus 103, the through described vehicle power steering apparatus 103 of described steering shaft 102, described vehicle power steering apparatus 103 comprises shell 20, one power wheel 12 is arranged in described shell 20, described steering shaft 102 passes described power wheel 12 and is fixed on described power wheel 12 by pin 13, and the outer rim of described power wheel 12 is provided with multiple external tooth 14; And
One screw rod 16, its one end is supported in described shell 20 by rear bearing element 17, the other end is supported in described shell 20 by front bearing element 18 and stretches out described front bearing element 18, its external part is connected to a driver element 11 by automatic centering coupler 15, and described screw rod 16 is provided with the outside thread with described external tooth 14 engaged transmission.
Preferably, the outside of described rear bearing element 17 is provided with a slice spring 19, and described spring 19 detouchable is fixed on described shell 20 and forms a pretension to described rear bearing element 17 and push power, to ensure effective support of screw rod 16 both sides.
Described bearing circle 101 is provided with angle detector, described angle detector is connected to control unit to detect the anglec of rotation of described bearing circle 101 in real time, described driver element 11 is connected to described control unit to accept control signal, when driver vehicle turns to, bearing circle is rotated to an angle, control unit obtains rotated angle by angle detector, described control unit can send control signal to driver element 11, rotate to control driver element 11, thus after drive screw rotation, by transmission of power to power wheel, through and provide steering shaft 102 1 power-assisteds turned to, owing to adopting screw drive, there is not fluid leakage, and transmission is accurate, power-assisted accurately can be provided, auxiliary wheel dress to.
Preferably, described driver element 11 is servomotor, to improve running accuracy.
Another inventive point of the present invention is the design of described automatic centering coupler 15, and this automatic centering coupler 15 at least comprises wheel of constant breadth 21, outer shroud 23, retainer 24, inner ring 25 and multiple ball 26.
Described wheel of constant breadth 21 comprises disc body, the rear end of described disc body is axially extended with engages fixing salient 211 with the output shaft of driver element 11, the front end week circular shaft of described disc body, to being extended with multiple first protuberance 212, is formed with multiple first recess 213 between described multiple first protuberance 212.
Described outer shroud 23 is cylindric, and its rear end periphery is axially extended with multiple the second protuberance 231 stretching into described first recess 213, and front end is provided with accommodation hole 232, and the periphery of described accommodation hole 232 is provided with multiple depression 233.
Described inner ring 25 is cylindric, be formed in it through can with the splined hole 251 of the spline engagement transmission on described screw rod external part, it is outer is provided with multiple longitudinal extension and the 3rd protuberance 252 that arranges of equi-spaced apart.
Described retainer 24 is between described outer shroud 23 and inner ring 25, and retainer 24 is provided with between multiple each 3rd protuberance 252 ball 26 being remained on inner ring and pocket hole 241 in the depression of outer shroud.
As can be seen here, driver element 11 is driven by wheel of constant breadth 21 pairs of outer shrouds 23, so by ancient ball by transmission of power to inner ring, with drive screw transmission.
For realizing automatic centering, the accommodation hole 232 of described outer shroud 23 is that interior spherical shape is to form certain Inner arc, and the outside face of the 3rd projection 252 of described inner ring 25 is the outer Surface of Sphere matched with described interior spherical shape, thus inner ring 25 can carry out certain rotation when not affecting transmission, avoid the bias of screw rod to affect the transmission of power.
Preferably, for avoiding the hard contact in power transmission, described wheel of constant breadth 21 and outer shroud 23 are provided with distance piece 22, described distance piece 22 is provided with the spacer portion 222 of through hole 221 and periphery longitudinal extension, described spacer portion 222 is between described first protuberance 212 and the second protuberance 231, described distance piece 22 is made up of elastomeric material, preferably be made up of rubber and phenol resin, thus, carried out the power buffering in transmission by elastomeric element between wheel of constant breadth 21 and outer shroud 23, avoid the impact that rigid contact produces, thus power transmission is more smooth and easy, speed and efficiency better.
Known by foregoing description, vehicle power steering apparatus tool of the present invention has the following advantages:
1, adopts screw drive, there is not fluid leakage, and transmission is accurate, can provide power-assisted accurately, auxiliary wheel dress to;
2, adopt the transmission of interior spherical shape and outer Surface of Sphere to coordinate, certain rotation can be carried out when not affecting transmission, avoiding the bias of screw rod to affect the transmission of power;
3, by elastomeric element carry out in transmission power buffering, avoid the impact that rigid contact produces, thus power transmission is more smooth and easy, speed and efficiency better.
It is evident that, above description and record be only citing instead of in order to limit disclosure of the present invention, application or use.Although described in an embodiment and be described in the drawings embodiment, but the present invention do not limit by accompanying drawing example and describe in an embodiment as the optimal mode thought at present to implement the specific examples of instruction of the present invention, scope of the present invention will comprise any embodiment of specification sheets and the appended claim fallen into above.
Claims (4)
1. a vehicle power steering apparatus, for in the steering hardware of vehicle, it is characterized in that: this steering hardware comprises bearing circle and steering shaft, described bearing circle is fixed on one end of described steering shaft, described bearing circle is provided with angle detector, and described angle detector is connected to control unit to detect the anglec of rotation of described bearing circle in real time; Described vehicle power steering apparatus comprises shell, and a power wheel is arranged in described shell, and described steering shaft passes described power wheel and is fixed on described power wheel by pin, and the outer rim of described power wheel is provided with multiple external tooth; And a screw rod, described screw rod is provided with the outside thread with described external tooth engaged transmission, its one end is supported in described shell by rear bearing element, the other end is supported in described shell by front bearing element and stretches out described front bearing element, its external part is connected to a driver element by coupler, and described driver element is connected to described control unit to accept control signal;
The outside of described rear bearing element is provided with a slice spring, and described spring detouchable is fixed on described shell and forms a pretension to described rear bearing element and push power to ensure effective support of screw rod both sides;
Described coupler is automatic centering coupler, at least comprises wheel of constant breadth, outer shroud, retainer, inner ring and multiple ball; Described wheel of constant breadth comprises disc body, the rear end of described disc body is axially extended with engages fixing salient with the output shaft of driver element, the front end week circular shaft of described disc body, to being extended with multiple first protuberance, is formed with multiple first recess between described multiple first protuberance; Described outer shroud is cylindric, and its rear end periphery is axially extended with multiple the second protuberance stretching into described first recess, and front end is provided with accommodation hole, and the periphery of described accommodation hole is provided with multiple depression; Described inner ring is cylindric, be formed in it through can with the splined hole of the spline engagement transmission on described screw rod external part, it is outer is provided with multiple longitudinal extension and the 3rd protuberance that arranges of equi-spaced apart; Described retainer is between described outer shroud and inner ring, and retainer is provided with between multiple each 3rd protuberance ball being remained on inner ring and pocket hole in the depression of outer shroud.
2. vehicle power steering apparatus as claimed in claim 1, is characterized in that: the accommodation hole of described outer shroud is interior spherical shape, and the outside face of the 3rd projection of described inner ring is the outer Surface of Sphere matched with described interior spherical shape.
3. vehicle power steering apparatus as claimed in claim 1, it is characterized in that: described wheel of constant breadth and be equipped with distance piece outward, described distance piece is provided with the spacer portion of through hole and periphery longitudinal extension, and described spacer portion is between described first protuberance and the second protuberance.
4. vehicle power steering apparatus as claimed in claim 3, is characterized in that: described distance piece is made up of elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388138.9A CN103465952B (en) | 2013-09-01 | 2013-09-01 | Vehicle power steering apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388138.9A CN103465952B (en) | 2013-09-01 | 2013-09-01 | Vehicle power steering apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103465952A CN103465952A (en) | 2013-12-25 |
| CN103465952B true CN103465952B (en) | 2015-09-02 |
Family
ID=49791061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310388138.9A Active CN103465952B (en) | 2013-09-01 | 2013-09-01 | Vehicle power steering apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103465952B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113335369B (en) * | 2021-04-16 | 2022-11-04 | 博世汽车转向系统（济南）有限公司 | Connecting piece, including its auto steering machine and car |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158465Y (en) * | 1993-04-05 | 1994-03-09 | 姜乃武 | Coupling |
| CN2354827Y (en) * | 1998-04-07 | 1999-12-22 | 具一哲 | Safety servo device for automotive steering wheel |
| CN2685190Y (en) * | 2003-12-26 | 2005-03-16 | 毕大宁 | Integral circulating ball type electric steering device |
| CN102241256A (en) * | 2010-05-10 | 2011-11-16 | 洛阳市京通方向机制造有限公司 | Novel high-power automobile circulating ball type electric steering gear |
| DE102011084535A1 (en) * | 2011-06-10 | 2012-12-13 | Robert Bosch Gmbh | Steering system for use in vehicle, has steering shaft for transmitting steering angle predetermined by driver and electric servomotor for generating supporting drive torque |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012144202A (en) * | 2011-01-14 | 2012-08-02 | Jtekt Corp | Electric power steering device |
-
2013
- 2013-09-01 CN CN201310388138.9A patent/CN103465952B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2158465Y (en) * | 1993-04-05 | 1994-03-09 | 姜乃武 | Coupling |
| CN2354827Y (en) * | 1998-04-07 | 1999-12-22 | 具一哲 | Safety servo device for automotive steering wheel |
| CN2685190Y (en) * | 2003-12-26 | 2005-03-16 | 毕大宁 | Integral circulating ball type electric steering device |
| CN102241256A (en) * | 2010-05-10 | 2011-11-16 | 洛阳市京通方向机制造有限公司 | Novel high-power automobile circulating ball type electric steering gear |
| DE102011084535A1 (en) * | 2011-06-10 | 2012-12-13 | Robert Bosch Gmbh | Steering system for use in vehicle, has steering shaft for transmitting steering angle predetermined by driver and electric servomotor for generating supporting drive torque |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103465952A (en) | 2013-12-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8636099B2 (en) | Rack-driven steering apparatus and rack-driven auxiliary power steering apparatus including the same | |
| WO2014043460A3 (en) | Power steering apparatus | |
| CN203140793U (en) | End-drive centre | |
| CN202429241U (en) | Rack and pinion steering device | |
| CN103465952B (en) | Vehicle power steering apparatus | |
| CN203637974U (en) | Differential gear chassis integrated with all-direction wheel | |
| CN202879580U (en) | Circulating ball hydraulic power assisted steering gear with floatable piston | |
| CN203488597U (en) | Rotary tabletting type bidirectional clutch | |
| CN104455286A (en) | Spiral lifting mechanism | |
| CN204077783U (en) | A kind of middle low power tractor dynamic power steering swivel system | |
| CN203294176U (en) | Electric power steering device of four-wheel motor vehicle | |
| CN102951197A (en) | Hydraulic power assisted diverter of circulating ball with floatable piston | |
| CN201784675U (en) | Booster activity integrated motor vehicle steering wheel | |
| CN203854713U (en) | Automobile steering system and electric truck | |
| CN202966419U (en) | Electronic hydraulic power steering control system of road roller | |
| CN206011085U (en) | A kind of turnover device of mechanical arm | |
| CN204794541U (en) | Compact lead screw motor | |
| CN204197003U (en) | A kind of vehicle electronics power steering apparatus | |
| CN103433665A (en) | H-shaped steel assembling, welding and correcting all-in-one machine with synchronous locating device | |
| CN203956118U (en) | A kind of workpiece inner sphere working gang tool | |
| CN103362985B (en) | Rotary tablet compression formula twin-direction clutch | |
| CN204846035U (en) | Integral commentaries on classics valve gear | |
| CN203948292U (en) | The rotor of steering pump of automobile | |
| CN204222961U (en) | A kind of worm steering gear | |
| CN203391246U (en) | Single-cylinder injection mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |